Sluicing mechanism for filter presses



Aug. 14, T923. '11,464,953 s. J. MISENER SLUICLNG'-MECHANISM'FOR FILTERI RESSES .Filed June 20 1921 3 Sheets-Sheet 1 Aug. 14, i923. 11,464,953

- S. J. MSENER SLUICING MECHANISM FOR FILTER PRESSES Filed June ZAO 19213 Sheets-Shea?I 2 Aug. 14, 1923. 11,464,953

s. J. MISENER SLUICING MEGHANISM FOR FILTER PRESSES Filed June 20. 19213 Sheets-Sheet 5 Www/Mmmm? rata-eea .aan ni, ieee.

sniiirson'aonn iarsniniie, or Woonsins7 noi'ffi scorre, CANADA.

SLUICING Ii/ EGHANSM FOR FILTER PRESSES.

Application filed' June 20, 1921. SeriaI No. 795846.

. To all 'whom it may concern:

f Be it known that l, SAMPSON JOHN Masnnnn, a subg ect ofthe iing otGreat Britain7 and residing at Vioodsida town .of Dart- I mouthin theProvince of Nova Scotiay and f VBominion of Canada, have inventedcertain new, and usefulimprovements in SluicingA l .Mechanism for FilterPresses,

ofrwhich the following is a specication.

This invention relates to improvements in slui'c-ing mechanism for.iilter presses, particularly to the mechanism'oi1 that type oi' presstermed'Sweetland filter, andin which the cake is removed trom'the filtercloth by a: longitudinally movable and oscillating wash water pipe`extending'-into the filter casing and .having discharge nozzles from.

which the Vwash water stream discharges Yagainst the tace or" the -ltercloth.

,Inrthis type otpress, diiierent mechanism have been constructed'` forreciprocating and oscillating the wash water pipe, and the presentinvention relates to an improved type otsuch mechanism whichwill be: ot

simple constructionfand cheaper to build,

and having the moving parts open to inspection; Y

Further objects of the invention are generally to improve andsimpliivthe construction of the mechanism tofbetter adaptthe variousparts to performV the functions required of them. f

Yit consists essentially of the improved construction hereinafterldescribed in detail :in the accompanying speciiication and drawings.

ln the drawings: f

Figure 1 is a plan view of the mechanism and a portion of a Sweetlandilter. N

Figure 2 isa cross-sectional view through the filter press.

Figure 3 is an elevation.

Figure 4 is an enlarged'sectional detail on the line -m, Figure 3. Y

Figure 5 is an elevation on a reduced scale of the oscillatingmechanism.

In the drawings, like characters of reference indicate correspondingparts in all the figures.

Referring to the drawings: t

A indicates the filter press having a casing 10 which contains theiilter cloth 11 and which is formed on one side near the top with arecess l2 in which extends' a horizoning and is formed at intervals withdischarge nozzles 13 through which the wash water is discharged againstthe filter Vclotln the nozzles'being spaced apart a distancesubstantially equal to the distance between adjacentfil'ter cloths.`

The manner of constructing and supporting the i'ilter cloth and theconstruction oi the filter press itselt does not form part of thepresent invention and, being well known in the art, will not behereindescribed further in detail. i.

The mechanism for oscillating. the Wash water pipe B comprises alever'lli rigidly connected toa split collar l5 whichfis "clamped to the,wash water pipe B, the said cillation of the lever lli, the oscillationof this invention may be Vcaused to take place through any suitablemechanism. or manually. I have shown in Figure 5 suitable mechanism foraccomplishing' this purpose comprising a rotary disc l5a having a pin 16on its periphery connected by a link 17 with the end of the lever' 11i.

'Il he wash water pipe B is supported with freedom to turn and oscillatein' suitable- 3 bearings 18 and 19. the bearing 19 being in the natureof stutiing boi; adapted to prevent escape o'l water from the casingr10.

'The wash water pipe is provided at one point with a split collar 20which is rigidly clamped thereto and adapted to form an jabutment Ytor athreaded sleeve or screw 21 nected thereto and designed to be engaged bya double-ended pawl 25 mounted on an arm V26 rigidly connected at oneend to the wash water pipe B by means of a split clamping collar 27. The1.3 wl 25 is centrally pivoted and has teethl 28 and 29 at opposite endsadapted alternatively to be brought into en gagement withv the teeth otthe pawl wheel, the pawl being held in one or other of its engagingpositions by gravity or spring means; the means I have illustratedcomprising a spring 30 extending from the pin 31 on the pawl 25 to a pin32 on the arm 26. the tension of the springr being adapted to be exertedalternatively on opposite sides of' the l0 stop pivotal point of thepaivl whereby it Will serve to'V maintain the paWl in spring engagementwith either the tooth 28 or to the tooth 29 in engagement with the pawlWheel.

Thepaivl is designed to be shifted from one alternative position to theother when the limited movement in either direction is reached; themeans l have shown to accom.- plish this purpose comprising` anadjustable 33 at one end adapted to engage the pin 8l and an adjustablestop Saat the opposite end designed to engage a pin 35 'carried on. acrank 3G connected to the pin 37 on which the pawl is pivotally mounted.rElie stop member 33 is adjustably connected by a bolt 8S to the bracketWhile the stop member 3d is adjustably connected by a bolt '39 to a`l.slriaped extension arm 87a connected to the bracket 40.' The stopsand 35iare `so disposed that ivlien the'pavling` arm 26 is oscillated,the pinsV 3l and will beenk@aged by the correspondingstops and theposition ofthe Vpaivl reversed. ln. the operation of the invention Wateris v 25 pumped into the open end of the slueing pipeB through Va bearing18 -which also acts asa stu'liing' box and is discharged continu ouslythrough the nozzle 13. rl`lie lever 14, is-oscillated through an anglelof approximately ninety degrees (900) and in so doing the pavvl arm 2GVwill operate the paivl 25, turning the pawl -Wheel 24 which 1till Iturnthe screw 2l which engaging the fixed nut 22 will exert va pressureagainst VtheV collar 2O which will move the Wash Water pipe B ahead inan axial direction. rllhe return stroke of the lever la is .an idleoiie'.

Successive strolres of tlic lever la .vill push the Wash Water pipeahead until the lpin 31 engages the stop 33, reversing the position oft-lie pawl 25 whereupon successive strokes of the lever will thenunscrew the screw 2l Y and move the Wash water pipe in a reverseddirection until the stop 311- engages the pins 35, the screw in itsreverse nioveiiient`bear ing against tliefcollar 27. v The distance oflateral travel of the Wash water pipe mayV Y V'be adjusted by adjust ingor changing the stops and 34;

It will be seen that by the mechanism the will Wash off the dirtfroineit-her side of,

the filter leaf', theoscillation of the nozzle causing it to spray thedirt off of the full area of the filter leaf. Y

is many changes could be made in the above construction and manyapparently Widely different embodiments of my invention Within the scopeof the claims, constructed Without departing from theV spirit or scopethereof, it isintended that all matter contained in the accompanyingspecification and drawings shall be interpreted as illustrative and notin a limiting sense.

Nhat l claim as myfinvention is: A,

l. ln a mechanism ofthe characte Vdescribed and in combination, WashWater pipe, Vmeans for oscillating the same, ajscreyv loosely mountedonthe Wash Water pipe,

Vmeans for causing the wash Water pipe te moveaiially With-the screw,affixed nut en i/agingV the scr-civ` a payvl Wheelbonnected to thescrew, a pawl cooperating with the paivl' Wheel and a 'paivlfarmsupporting the 'paivl and connected to the Wash water pipe.

2. The mechanism asclaimed in claim l, in .vliieh tlievpaivl isreversible andin which means aie provided for reversing the position ofthe paivl after the Wash Water pipe has moyed a determined dista-neef ineither direction.

The mechanism as claimed in claim l, in which the paivl .is centrallypivoted and provided with teeth at opposite ends adapted to engage thepaWl Wheel and adapted to be yieldably held with either Vtooth gaggedwith the pawl wheel, and stop members adapted to reverse the position ofthe paWl. Y Y n n witness whereof l have hereunto set my hand in thepresence of tivo Witnesses.

SAMPSON JOHN MISENER.

Witnesses: l Y

'E N. GUNsAULUs, J r.,

MAiiin BUDDY.

